CRD4525-Q1 Cirrus Logic Inc, CRD4525-Q1 Datasheet - Page 75

• Manufacturer Part Number: CRD4525-Q1
• Description: REFERENCE BOARD FOR CS4525 PWM
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r

Specifications of CRD4525-Q1

• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 15W x 2 @ 8 Ohm
• Voltage - Supply: 12 V ~ 18 V
• Operating Temperature: 0°C ~ 70°C
• Board Type: Fully Populated
• Utilized Ic / Part: CS4525
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1586

DS726PP3
9.5.4
9.5.5
9.5.6
9.6
9.6.1
PreScale2
7
Mixer / Pre-Scale Configuration (Address 06h)
Foldback Attack Delay (AttackDly[1:0])
Default = 01
Function:
Controls the foldback attack delay. See
Enable Foldback Floor (EnFloor)
Default = 0
Function:
Controls the foldback attenuation floor feature. See
Ramp Speed (RmpSpd[1:0])
Default = 11
Function:
Controls the PWM output ramp speed. See
formation.
Pre-Scale Attenuation (PreScale[2:0])
Default = 000
Function:
Controls the pre-scale attenuation level. See
AttackDly[1:0] Setting
EnFloor Setting
RmpSpd[1:0] Setting
PreScale[2:0] Setting
00 ........................................Approximately 0.5 seconds.
01 ........................................Approximately 1.0 seconds.
10 ........................................Approximately 1.5 seconds.
11.........................................Approximately 2.0 seconds.
0 ..........................................No foldback attenuation floor imposed.
1 ..........................................Maximum foldback attenuation limited to -30 dB.
00 ........................................Fastest Ramp Speed
10 ........................................Slowest Ramp Speed
11.........................................Immediate. PWM Popguard Disabled.
000 ......................................No pre-scale attenuation applied.
001 ......................................-2.0 dB
010 ......................................-4.0 dB
100 ......................................-8.0 dB
111 .......................................-14.0 dB
......................................
......................................
PreScale1
6
PreScale0
Foldback Attack Time
Pre-Scale Attenuation Setting
Attenuation Floor
Ramp Speed
5
Reserved
4
“Thermal Foldback” on page 40
“PWM Popguard Transient Control” on page 45
“Pre-Scaler” on page 30
RChMix1
“Thermal Foldback” on page 40
3
RChMix0
2
for more information.
for more information.
LChMix1
1
for more information.
for more in-
CS4525
LChMix0
0
75